Screwdriver bit



FIG. 1 is a perspective view of a screwdriver bit showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8. is another perspective view thereof, wherein the broken line portions of the screwdriver bit differ from the bit depicted in FIGS. 1 through 7.

The broken lines depict portions of the screwdriver bit in which the design is embodied that are not considered part of the claimed design. 

CLAIM The ornamental design for a screwdriver bit, as shown. 